Civil aviation dictionary
Aviation glossary
Terms, abbreviations and procedures explained without unnecessary jargon, with English names and clear definitions.
- Total entries
- 2480
- Terms
- 435
- Abbreviations
- 2045
D
- AbbreviationDirect Access Radar Channel
DARC stands for Direct Access Radar Channel in FAA terminology.
- Abbreviationdirect altitude and identification readout equipment
DAIRE stands for direct altitude and identification readout equipment in FAA terminology.
- AbbreviationDirect Altitude and Identity Readout
DAIR stands for Direct Altitude and Identity Readout in FAA terminology.
- AbbreviationDirect controller-pilot communications
DCPC stands for Direct controller-pilot communications in FAA terminology.
- Abbreviationdirect current
DC stands for direct current in FAA terminology.
- AbbreviationDirectives Management Officer, FAA
DMO stands for Directives Management Officer, FAA in FAA terminology.
- AbbreviationDirector of Airway Facilities
AAF-1 stands for Director of Airway Facilities in FAA terminology.
- OperationsDISCRETE CODE
As used in the Air Traffic Control Radar Beacon System (ATCRBS), any one of the 4096 selectable Mode 3/A aircraft transponder codes except those ending in zero zero; e.g., discrete codes: 0010, 1201, 2317, 7777; nondiscrete codes: 0100, 1200, 7700.
- Radio communications and ATCDISCRETE FREQUENCY
A separate radio frequency for use in direct pilot‐controller communications in air traffic control which reduces frequency congestion by controlling the number of aircraft operating on a particular frequency at one time.
- AbbreviationDisplaced runway threshold
DTHR stands for Displaced runway threshold in FAA terminology.
- AbbreviationDistance Measuring Equipment
Radio-navigation equipment measuring slant distance to a ground station.
- Abbreviationdistinguished visitors
DV stands for distinguished visitors in FAA terminology.
- AbbreviationDistress signal
The international radiotelephony distress signal for grave and imminent danger.
- Abbreviationdistrict airport engineer
DAE stands for district airport engineer in FAA terminology.
- OperationsDME FIX
A geographical position determined by reference to a navigational aid which provides distance and azimuth information.
- AbbreviationDME-collocated with glide slope
DMEG stands for DME-collocated with glide slope in FAA terminology.
- AbbreviationDME-tactical air navigation with DME only commissioned
DMER stands for DME-tactical air navigation with DME only commissioned in FAA terminology.
- Abbreviationdo not pass to Air Defense radar
NOPAR stands for do not pass to Air Defense radar in FAA terminology.
- AbbreviationDo you intend to ask me for a series of bearings? Or I intend to ask you for a series of bearings
QDL stands for Do you intend to ask me for a series of bearings? Or I intend to ask you for a series of bearings in FAA terminology.
- Abbreviationdoing business as
DBA stands for doing business as in FAA terminology.
- OperationsDOMESTIC AIRSPACE
Airspace which overlies the continental land mass of the United States plus Hawaii and U.S. possessions.
- OperationsDOMESTIC NOTICE
A special notice or notice containing graphics or plain language text pertaining to almost every aspect of aviation, such as military training areas, large scale sporting events, air show information, Special Traffic Management Programs (STMPs), and airport-specific information.
- AbbreviationDoppler Very High Frequency Omni Directional Range
DVOR stands for Doppler Very High Frequency Omni Directional Range in FAA terminology.
- Abbreviationdoppler VHF omni-directional radio range
DVOR stands for doppler VHF omni-directional radio range in FAA terminology.